9 Best AI Interior Design Apps in 2026 (Free & Paid, Compared)

Quick answer

Best overall (design you can actually buy): Ludwig by Fülhaus. Best free style preview: RoomGPT. Best for floor plans: Planner 5D. Best on mobile: Home AI. Best for listings and social: Canva AI. Best human-led alternative: Decorilla. Everything else on this page is detail on how we got there.

There are two kinds of AI interior design apps, and almost every "best AI interior design apps" list mixes them together. The first kind restyles a photo of your room and hands you an inspiring image. The second kind designs the room and lets you buy every product in it. Knowing which category a tool sits in matters more than its render quality — a beautiful image you can't shop is where most projects stall.

This guide compares the best AI interior design apps for 2026 across price, output, and — the part usually left out — whether the furniture in the render is real and purchasable.

Render-only vs shoppable AI design apps

Render-only apps generate a styled image from your photo or prompt. The furniture is generated pixels, not products. You still have to identify each piece, find a lookalike, compare prices across sites, and manage six deliveries yourself. Examples: RoomGPT, Home AI, Canva.

Shoppable AI design apps build the design from a live product catalog. Every item in the render has a SKU, a price, a lead time, and a checkout. Examples: Ludwig by Fulhaus, and a small number of retailer-owned tools limited to their own inventory.

The practical test: click something in the render. If nothing happens, it's an inspiration tool. Budget several weekends of sourcing on top of it.

AI interior design apps at a glance

How we compared them

We ran the same brief through each app: one photo of a 12 x 14 ft living room, a mid-range budget, and a warm-minimal reference image. Then we scored four things — how usable the layout was, how realistic the render looked, how much control we had over specifics, and how far the app got us toward owning the furniture. Prices are the public rates at the time of writing and change often, so check before you buy.

The best AI interior design apps, compared

1. Ludwig — best for actually getting the room

Ludwig is the only AI interior design app that designs, sources, and delivers. It's not a render tool with a shopping list bolted on: designs are generated against a live catalog from 500+ vendors, so every product is real, in stock, and priced as you see it. You talk to it in chat, by text, or on a call, and refine until the room is right.

Output: photorealistic render + itemized, shoppable product list.

Price: start with 20 free design credits (about 20 renders), then add $20 pay-as-you-go credits. You only pay for furniture when you order.

Best for: homeowners, interior designers, Airbnb hosts, and property managers who want a finished room.

Trade-off: it's a service, not a toy — it optimizes for buying a room, not for endless style experiments.

2. RoomGPT — best free style preview

RoomGPT restyles a photo of your room in seconds and made this whole category popular. It's the fastest way to see whether a style suits your space.

Output: restyled image. Products are generated, not real.

Price: free tier, paid credits for more renders.

Best for: quick before/after mockups and style exploration.

Trade-off: nothing in the image is buyable.

3. Planner 5D — best for floor plans and dimensions

Planner 5D is a room planner that added AI assistance. If your project depends on exact dimensions — a narrow room, an awkward alcove, a renovation — this is the stronger tool.

Output: 2D floor plan + 3D walkthrough.

Price: free tier, paid subscription for the full object library.

Best for: DIY planners and renovators.

Trade-off: limited real-product sourcing; renders look less photoreal than AI-native tools.

4. Home AI — best mobile-first restyler

Home AI restyles room photos from your phone with a large set of style presets. Fast, fun, and genuinely useful for narrowing down a direction before you commit.

Output: restyled photo.

Price: free with in-app purchases.

Best for: browsing styles on the go.

Trade-off: no product data, limited control over specifics.

5. Canva AI — best for content and listings

Canva's AI styling is an image tool rather than a spatial design tool, which makes it well suited to marketing a space: rental listings, social posts, before/after content.

Output: styled image assets.

Price: included with Canva Pro.

Best for: creators, landlords, and agents producing visuals.

Trade-off: not a room design tool; no layout logic, no products.

6. Decorilla — best human-led online option

Decorilla isn't AI-first, but it ranks for these searches because it solves the same job: design delivered online. You're matched with a human designer who returns concepts and a shopping list.

Output: designer concepts + curated shopping list.

Price: package pricing, typically several hundred dollars per room.

Best for: people who specifically want a human designer.

Trade-off: weeks instead of minutes, and you still place the orders yourself.

7. Interior AI — best for trying many styles fast

Interior AI restyles a room photo across dozens of named styles, from Scandinavian to biophilic. It's the closest thing to a style slot machine, which is exactly what you want early on.

Output: restyled photo, multiple style presets.

Price: limited free use, paid plans for higher resolution and volume.

Best for: narrowing a direction before you commit to anything.

Trade-off: no products, no layout logic, and results drift from your real room's proportions.

8. REimagine Home — best for virtual staging

REimagine Home leans toward real estate: stage an empty room, refresh a dated one, or produce listing visuals. Useful if the goal is selling or renting the space rather than living in it.

Output: staged or restyled photo.

Price: free credits, then paid plans.

Best for: agents, landlords and hosts preparing listings.

Trade-off: staging visuals aren't a furnishing plan, and disclosure rules apply in most listings.

9. Spacely AI — best for generating concept options

Spacely AI produces several concept variations from one photo or sketch, which helps when you're presenting options to a partner or a client.

Output: concept renders and variations.

Price: free credits, then paid plans.

Best for: early concepting and client conversations.

Trade-off: concepts only — sourcing, pricing and delivery are still on you.

How to choose

Match the tool to the job, not to the render quality:

Just exploring a style? RoomGPT, Home AI or Interior AI — free, five minutes.

Renovating and dimensions matter? Planner 5D.

Marketing or staging a space? Canva or REimagine Home.

Presenting options? Spacely AI.

Want a human designer? Decorilla.

Want the room actually designed, bought, and delivered? Ludwig — it's the only app on this list that closes that last gap. If you're furnishing a rental, start with Ludwig for Airbnb.

What the free apps cost you later

Free renders are genuinely useful, but the bill arrives as time. In our own test, matching six pieces from a single render to real, in-stock products took roughly four hours of searching, then produced five separate orders, five delivery windows and two returns when scale was wrong. That's the hidden price of a render-only workflow, and it's the part a shoppable app removes.

Where these apps are heading

The gap between the two categories is widening. Render quality has largely commoditized — most tools now produce a convincing image. The remaining hard problem is fulfillment: live inventory, accurate pricing, multi-vendor logistics, warranty. That's the work that turns an image into a room, and it's why the shoppable category is a much shorter list than the render-only one.

For deeper background on how these systems work, read our complete guide to AI interior design, or see the free AI room design options if you want to test one today. If you're weighing an AI app against an online design service, compare Fülhaus vs. Havenly.

Frequently asked questions

What is the best AI interior design app?

For a design you can actually buy, Ludwig by Fülhaus — every product in the render is real, in stock and priced as shown. For a free style preview, RoomGPT is still the fastest way to see a look in your own room.

Is there a completely free AI interior design app?

Yes. RoomGPT, Home AI, Interior AI, REimagine Home and Spacely AI all have free tiers or free credits. Ludwig gives you 20 free design credits, about 20 renders, and you only pay when you order furniture.

Which AI app lets you actually buy the furniture in the render?

Ludwig. It designs against a live catalog from 500+ vendors, so each item has a SKU, price and lead time, and you order everything in one place instead of tracking six suppliers.

Can AI replace an interior designer?

Not for structural work, custom millwork or complex renovations. For furnishing and styling a room, AI now does in minutes what used to take weeks — and Ludwig adds the sourcing and ordering a designer would normally handle.

Do AI interior design apps work with my room's real dimensions?

Most restylers ignore dimensions and only reinterpret pixels. Planner 5D works from a measured plan, and Ludwig accepts your floor plan and room photos so product scale is checked against the space.

Are AI room renders accurate enough to buy from?

Treat a render-only image as a mood board, not a spec. Renders tied to real SKUs are reliable because the dimensions, materials and finishes come from the actual product data, not from the image.

Conclusion

The best AI interior design app depends entirely on whether you want a picture or a room. For inspiration, the free tools are excellent and you should use them. For an actual furnished space, you need real products behind the render.

Ready to skip the mockup stage? Start a conversation with Ludwig and get a shoppable room design free.